1. a prime number, as are 2 and 3.
2. Michael Jordan's number.
3. the NBA record for most consecutive points scored by a single player in a game, done by none other than Michael Jordan.
4. the number of chromosomes in a human sperm or egg.
5. the angle between the earth's magnetic and rotational axis.
6. the Tropic of Cancer at 23 degrees N Latitude.
7. the Tropic of Capricorn at 23 degrees S Latitude.
8. a .com and the page is very cryptic.
9. the most quoted Psalm in the bible ("The Lord is my shepherd..."
10. the number of people executed in "A Tale of Two Cities"
11. the smallest number of people for which there is at least a 50% chance that two will share the same birthday.
12. the standard TCP/IP port for Telnet.
13. one of the "Lost" numbers on the television show....also the sum of two of the other numbers (8 & 15)and the solution to 42-15-4=23, all of which are also Lost numbers.
14. the number of times Caesar was stabbed in Shakespeare's Julius Caesar.
15. has been prominently featured in the following: Serendipity, Futurama, Star Wars A New Hope, Monty Python The Life of Brian, Seinfeld, The Big Lebowski, The Matrix Reloaded, and Die Hard III among MANY MANY other movies.
16. the number of flavors Dr. Pepper claims to be a blend of.
17. the number of distinct orientations of Tetris pieces.
18. the sum of U2, the greatest band ever. U is the 21st letter of the alphabet.
19. the number of letters in the latin alphabet.
20. the number of the Illuminati.
21. the letter W in the english alphabet, a letter with 2 points down and 3 points up.
22. the smallest number of integer sided boxes that tile a box such that no two boxes share a common length.
23. the only US president to serve between nonconsecutive terms of another president (23rd president Benjamin Harrison serving between Grover Cleveland's terms).

The number 23 is my favorite number.
It's my birthday.
The number of flavors in Dr. Pepper... but I don't like DP
The "23 Enigma" is the Discordant belief that all events are connected to the number 23, given enough ingenuity on the part of the interpreter.
Just watch The Number 23, you'll understand
Plus its a pretty good movie. I liked it:)

There are many more things that have to do with the number 23, trust me. I've thought of so many.. I just can't remember them all.